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Re: [Phys-L] motion lab



If anyone has Lego NXT controllers, Sam Terfa (a h.s. physics teacher in MN) developed a program that allows the quick and easy control of the car's velocity and acceleration for specified times. Kids can do the stuff I mentioned with modeling, but there is a wide range of velocities and accelerations available for the car.
Sam put his work up on the website below:
https://sites.google.com/site/nxtkinematics/home

The old workshop physics stuff (i dont know if they still do this) did acceleration by tapping a bowling ball with a baton, then marking by student positions. They did 2-d motion this way as well.

Have a good one.
Paul.

-----Original Message-----
From: Phys-l [mailto:phys-l-bounces@phys-l.org] On Behalf Of Trivilino, Herman
Sent: Thursday, September 19, 2013 7:25 PM
To: Phys-L@Phys-L.org
Subject: Re: [Phys-L] motion lab

Workshop Physics has a good activity where students stand along a hallway, for example, separated from each by fixed distances. Each student has a stop watch in hand. A ball is then rolled down the hallway and each student measures the clock reading as the ball passes. The position and time of the ball is then available and can entered into a spreadsheet or just a table, and then the data can be graphed and used to illuminate the relationship between position, time, and velocity.

Each position-time coordinate refers to an event, and each student "owns" an event. The idea can then be developed that events last for time time but occur at a time.

Good stuff, low teach, and a worthwhile lesson.

________________________________

From: Phys-l on behalf of Anthony Lapinski
Sent: Thu 19-Sep-13 3:11 PM
To: phys-l@phys-l.org
Subject: [Phys-L] motion lab



Does anyone do a "constant velocity" lab? Like using constant velocity cars (Tumble Buggies)? If so, what do students measure (just d and t?)? Do they make a graph? Cookbook or open-ended? Is it more about measuring than finding the actual speed?

I'm looking for something low tech (for high school) and meaningful. Just stopwatches and meter sticks. Wanting some ideas to make a "basic" lab like this interesting...

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_______________________________________________
Forum for Physics Educators
Phys-l@phys-l.org
http://www.phys-l.org/mailman/listinfo/phys-l